Q.Oleanders
I planted my oleanders about 1-1/2 yrs ago and they still are not growing but are about the same size. I live in Arizona, so I have water lines on each plant. Should I fertilize? And, if so, what can I give them to get some quick growth?
Thank you
Dominick Labate

These articles will help you review the care needed for healthy Oleander shrubs.
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/oleander-growing-tips.htm
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/no-flowers-on-oleander.htm
https://www.gardeningknowhow.com/ornamental/shrubs/oleander/rejuvenating-overgrown-oleanders.htm